運行WEBrick時出錯：無法連接到MySQL服務器

Question

嘿，我不知道該怎么辦才能解決此錯誤消息。 剛開始使用帶導軌的ruby並嘗試進行所有設置，以便我可以了解更多信息，但仍堅持嘗試使WEBrick正常工作。 一切都會有幫助的，謝謝！

 C:\Users\Brandon\Documents\Sites\simple_cms>rails server
=> Booting WEBrick
=> Rails 3.2.13 application starting in development on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
Exiting
C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_record/connec
tion_adapters/mysql_adapter.rb:411:in `real_connect': Can't connect to MySQL ser
ver on 'localhost' (10061) (Mysql::Error)
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_
record/connection_adapters/mysql_adapter.rb:411:in `connect'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_
record/connection_adapters/mysql_adapter.rb:131:in `initialize'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_
record/connection_adapters/mysql_adapter.rb:38:in `new'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_
record/connection_adapters/mysql_adapter.rb:38:in `mysql_connection'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_ 
record/connection_adapters/abstract/connection_pool.rb:315:in `new_connection'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_
record/connection_adapters/abstract/connection_pool.rb:325:in `checkout_new_conn
ection'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_
record/connection_adapters/abstract/connection_pool.rb:247:in `block (2 levels)
in checkout'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_
record/connection_adapters/abstract/connection_pool.rb:242:in `loop'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_
record/connection_adapters/abstract/connection_pool.rb:242:in `block in checkout
'
    from C:/Ruby193/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_ 
record/connection_adapters/abstract/connection_pool.rb:239:in `checkout'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_
record/connection_adapters/abstract/connection_pool.rb:102:in `block in connecti
on'
    from C:/Ruby193/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_
record/connection_adapters/abstract/connection_pool.rb:101:in `connection'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_
record/connection_adapters/abstract/connection_pool.rb:410:in `retrieve_connecti   
on'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_
record/connection_adapters/abstract/connection_specification.rb:171:in `retrieve
_connection'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_
record/connection_adapters/abstract/connection_specification.rb:145:in `connecti
on'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activerecord-3.2.13/lib/active_
record/railtie.rb:88:in `block in <class:Railtie>'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/initi
alizable.rb:30:in `instance_exec'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/initi
alizable.rb:30:in `run'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/initi
alizable.rb:55:in `block in run_initializers'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/initi
alizable.rb:54:in `each'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/initi
alizable.rb:54:in `run_initializers'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/appli
cation.rb:136:in `initialize!'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/railt
ie/configurable.rb:30:in `method_missing'
    from C:/Users/Brandon/Documents/Sites/simple_cms/config/environment.rb:5
:in `<top (required)>'
    from C:/Users/Brandon/Documents/Sites/simple_cms/config.ru:3:in `require
'
    from C:/Users/Brandon/Documents/Sites/simple_cms/config.ru:3:in `block i
n <main>'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:
51:in `instance_eval'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:
51:in `initialize'
    from C:/Users/Brandon/Documents/Sites/simple_cms/config.ru:in `new'
    from C:/Users/Brandon/Documents/Sites/simple_cms/config.ru:in `<main>'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:
40:in `eval'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib/rack/builder.rb:
40:in `parse_file'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib/rack/server.rb:2
00:in `app'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/comma
nds/server.rb:46:in `app'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib/rack/server.rb:3
04:in `wrapped_app'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rack-1.4.5/lib/rack/server.rb:2
54:in `start'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/comma
nds/server.rb:70:in `start'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/comma
nds.rb:55:in `block in <top (required)>'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/comma
nds.rb:50:in `tap'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.13/lib/rails/comma
nds.rb:50:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

我正在嘗試一些不同的方法來使其工作，我看到有人說沒有gemfile opensll或其他東西可能是一個問題，然后我讀了另一句話說要嘗試rake db：create，我也收到了此錯誤消息。

C:\Users\Brandon\Documents\Sites\simple_cms>rake db:create
Can't connect to MySQL server on 'localhost' (10061)
Couldn't create database for {"adapter"=>"mysql2", "encoding"=>"utf8", "reconnec
t"=>false, "database"=>"simple_cms_development", "pool"=>5, "username"=>"root",
"password"=>nil, "host"=>"localhost"}, charset: utf8, collation: utf8_unicode_ci

(if you set the charset manually, make sure you have a matching collation)
Can't connect to MySQL server on 'localhost' (10061)
Couldn't create database for {"adapter"=>"mysql2", "encoding"=>"utf8", "reconnec
t"=>false, "database"=>"simple_cms_test", "pool"=>5, "username"=>"root", "passwo
rd"=>nil, "host"=>"localhost"}, charset: utf8, collation: utf8_unicode_ci
(if you set the charset manually, make sure you have a matching collation)

Answer 1

看起來config/database.yml任何配置信息均無效，或者您沒有正確配置MySQL服務器。

從收到的錯誤中可以看出，您的MySQL服務器未運行或未在您定義的端口上響應。

測試您是否可以使用mysql命令行工具或等效工具進行連接。

Answer 2

您需要在此處為Windows安裝mysql。 Mysql不是Ruby環境的一部分，並且不能通過Bundler和/或Rails處理。 您的計算機上是否安裝了mysql實例？